Days of future past starts filming In april so If Shawn Ashmore Is In DOFP If the show Is picked up he can film it In the hituas.

Exactly, if the Following gets renewed, the filming of season 2 would probably start in August or September of 2013 because most renewed shows film their season premieres during those months. Shawn Ashmore could definitely film his scenes in April or May or June and if he's really in the movie, I don't think he will do a lot of scenes compare to his role in X3.